package com.hrd.common.util;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;

public class MySqlUtils {

  public static void main(String[] args) {
    System.out.println("开始备份...");
    //backup();
    System.out.println("备份成功...");

    System.out.println("开始还原...");
    load1();
    System.out.println("还原成功...");
  }

  public static void backup() {
    try {
      Runtime rt = Runtime.getRuntime();
      // 调用 调用mysql的安装目录的命令
      Process child = rt.exec("C://Program Files//MySQL//MySQL Server 5.7//bin//mysqldump -h localhost -uroot -proot intranet");
      // 设置导出编码为utf-8。这里必须是utf-8
      // 把进程执行中的控制台输出信息写入.sql文件，即生成了备份文件。注：如果不对控制台信息进行读出，则会导致进程堵塞无法运行
      InputStream in = child.getInputStream();// 控制台的输出信息作为输入流
      InputStreamReader xx = new InputStreamReader(in, "utf-8");
      // 设置输出流编码为utf-8。这里必须是utf-8，否则从流中读入的是乱码
      String inStr;
      StringBuffer sb = new StringBuffer("");
      String outStr;
      // 组合控制台输出信息字符串
      BufferedReader br = new BufferedReader(xx);
      while ((inStr = br.readLine()) != null) {
        sb.append(inStr + "\r\n");
      }
      outStr = sb.toString();
      // 要用来做导入用的sql目标文件：
      FileOutputStream fout = new FileOutputStream("D://gration//test.sql");
      OutputStreamWriter writer = new OutputStreamWriter(fout, "utf-8");
      writer.write(outStr);
      writer.flush();
      in.close();
      xx.close();
      br.close();
      writer.close();
      fout.close();
      System.out.println("");
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  public static void load() {
    try {
      String fPath = "c:/test.sql";
      Runtime rt = Runtime.getRuntime();
      // 调用 mysql 安装目录的命令
      Process child = rt.exec("C://Program Files//MySQL//MySQL Server 5.1//bin//mysql -u root -p root intranet");

      OutputStream out = child.getOutputStream();// 控制台的输入信息作为输出流
      String inStr;
      StringBuffer sb = new StringBuffer("");
      String outStr;
      BufferedReader br = new BufferedReader(new InputStreamReader(
              new FileInputStream(fPath), "utf-8"));
      while ((inStr = br.readLine()) != null) {
        sb.append(inStr + "\r\n");
      }
      outStr = sb.toString();
      System.out.println(outStr);
      OutputStreamWriter writer = new OutputStreamWriter(out, "utf-8");
      System.out.println("7777777777777777777777777777777777777");
      writer.write(outStr);
      System.out.println("888888888888888888888888888888888888888");
      writer.flush();
      out.close();
      br.close();
      writer.close();
      System.out.println("");
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  public static void load1() {
    try {
      String fPath = "D:\\gration\\test.sql";
      Runtime rt = Runtime.getRuntime();

      // 调用 mysql 的 cmd:
      Process child = rt.exec("C:\\Program Files\\MySQL\\MySQL Server 5.7\\bin\\mysql.exe -u root -proot intranet ");
      OutputStream out = child.getOutputStream();//控制台的输入信息作为输出流
      String inStr;
      StringBuffer sb = new StringBuffer("");
      String outStr;
      BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fPath), "utf8"));
      while ((inStr = br.readLine()) != null) {
        sb.append(inStr + "\r\n");
      }
      outStr = sb.toString();

      OutputStreamWriter writer = new OutputStreamWriter(out, "utf8");
      writer.write(outStr);
      // 注：这里如果用缓冲方式写入文件的话，会导致中文乱码，用flush()方法则可以避免
      writer.flush();
      // 别忘记关闭输入输出流
      out.close();
      br.close();
      writer.close();

      System.out.println("");

    } catch (Exception e) {
      e.printStackTrace();
    }

  }

}
